| Issue |
Europhys. Lett.
Volume 71, Number 1, July 2005
|
|
|---|---|---|
| Page(s) | 110 - 116 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2005-10069-3 | |
| Published online | 01 June 2005 | |
Non-equilibrium magnetization dynamics
in the 
single-molecule magnet induced
by high-intensity microwave radiation
1
Department of Physics, Amherst College - Amherst, MA 01002-5000, USA
2
Physics Department, City College of the City University of New York New York, NY 10031, USA
3
Department of Chemistry and Biochemistry, University of California at San Diego La Jolla, CA 92093, USA
4
Department of Condensed Matter Physics, The Weizmann Institute of Science Rehovot 76100, Israel
Received:
22
February
2005
Accepted:
10
May
2005
Resonant microwave radiation applied to a single crystal of the
molecular magnet induces dramatic changes in the
sample's magnetization. Transitions between excited states are
found even though at the nominal system temperature these levels
have negligible population. We find evidence that the sample heats
significantly when the resonance condition is met. In addition,
heating is observed after a short pulse of intense radiation has
been turned off, indicating that the spin system is out of
equilibrium with the lattice.
PACS: 75.50.Xx – Molecular magnets / 76.30.-v – Electron paramagnetic resonance and relaxation / 75.45.+j – Macroscopic quantum phenomena in magnetic systems
© EDP Sciences, 2005
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